gov.redhawk.sca.internal.ui.wizards.NameColumnLabelProvider.java Source code

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Here is the source code for gov.redhawk.sca.internal.ui.wizards.NameColumnLabelProvider.java

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/**
 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 * 
 * This file is part of REDHAWK IDE.
 * 
 * All rights reserved.  This program and the accompanying materials are made available under 
 * the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 *
 */
package gov.redhawk.sca.internal.ui.wizards;

import mil.jpeojtrs.sca.prf.Simple;
import mil.jpeojtrs.sca.prf.SimpleSequence;

import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;

/**
 * @since 2.0
 * 
 */
public class NameColumnLabelProvider extends CellLabelProvider {

    private static final int DEFAULT_TOOLTIP_DELAY = 100;

    @Override
    public int getToolTipTimeDisplayed(final Object element) {
        boolean display = false;
        if (element instanceof Simple) {
            display = true;
        } else if (element instanceof SimpleSequence) {
            display = true;
        }
        if (display) {
            return -1;
        }
        return super.getToolTipTimeDisplayed(element);
    }

    @Override
    public String getToolTipText(final Object element) {
        if (element instanceof Simple) {
            final Simple ref = (Simple) element;
            if (ref.getDescription() != null) {
                return wrap(ref.getDescription());
            }

        } else if (element instanceof SimpleSequence) {
            final SimpleSequence ref = (SimpleSequence) element;
            if (ref.getDescription() != null) {
                return wrap(ref.getDescription());
            }
        }
        return super.getToolTipText(element);
    }

    /**
     * @param description
     * @return
     */
    private String wrap(final String description) {
        final StringBuilder builder = new StringBuilder();
        final int length = description.length();
        final int lineLength = 75;
        for (int position = 0; position < length;) {
            final int nextPosition = position + lineLength;
            int end = Math.min(nextPosition, length);
            final int endWhitespace = description.indexOf(" ", end);
            if (endWhitespace != -1) {
                end = endWhitespace;
            }
            builder.append(description.substring(position, end));
            position = end + 1;
            if (end < length) {
                builder.append('\n');
            }
        }
        return builder.toString();
    }

    @Override
    public int getToolTipDisplayDelayTime(final Object element) {
        boolean display = false;
        if (element instanceof Simple) {
            display = true;
        } else if (element instanceof SimpleSequence) {
            display = true;
        }
        if (display) {
            return NameColumnLabelProvider.DEFAULT_TOOLTIP_DELAY;
        }
        return super.getToolTipDisplayDelayTime(element);
    }

    @Override
    public void update(final ViewerCell cell) {
        final Object element = cell.getElement();
        if (element instanceof Simple) {
            final Simple ref = (Simple) element;
            cell.setText(ref.getName());
        } else if (element instanceof SimpleSequence) {
            final SimpleSequence ref = (SimpleSequence) element;
            cell.setText(ref.getName());
        }

    }

}